These were all made `--formulae` and `--casks` for consistency but that
doesn't behave as expected because they have special behaviours in
`args`. Instead, use the singular form everywhere.

Fix “wrong number of arguments” error

Cleanup more GitHub Actions usage

This commit fixes an error introduced in 6c964d4a, which would
surface on certain install/reinstall/upgrade failures.

Example:

```
==> Patching
patching file default_out.txt
Hunk #2 FAILED at 11.
1 out of 2 hunks FAILED -- saving rejects to file default_out.txt.rej
Error: wrong number of arguments (given 3, expected 2)
/usr/local/Homebrew/Library/Homebrew/reinstall.rb:77:in `restore_backup'
/usr/local/Homebrew/Library/Homebrew/reinstall.rb:52:in `block in reinstall_formula'
/usr/local/Homebrew/Library/Homebrew/utils.rb:377:in `ignore_interrupts'
/usr/local/Homebrew/Library/Homebrew/reinstall.rb:52:in `rescue in reinstall_formula'
/usr/local/Homebrew/Library/Homebrew/reinstall.rb:10:in `reinstall_formula'
/usr/local/Homebrew/Library/Homebrew/cmd/reinstall.rb:71:in `block in reinstall'
/usr/local/Homebrew/Library/Homebrew/cmd/reinstall.rb:65:in `each'
/usr/local/Homebrew/Library/Homebrew/cmd/reinstall.rb:65:in `reinstall'
/usr/local/Homebrew/Library/Homebrew/brew.rb:112:in `<main>'
```

Remove usages of `Homebrew.args.verbose?` and `Homebrew.args.debug?`.

Increase consistency between workflows, use more of our actions and
`@main`.

cask/create: update template to match new style

bump-formula-pr: only check closed PRs for exact match

build(deps): bump dnsruby from 1.61.3 to 1.61.4 in /docs

workflows/tests: cleanup steps.

cmd/tap-info: improve comma usage.

Set up Homebrew should handle both the Git and Ruby setup for us (and
do so faster).

Broken in https://github.com/Homebrew/brew/pull/8230.

Remove more tap pinning code.

This was deprecated and removed a while ago.

Revert "Deprecate global `Homebrew.args`."

workflows/tests: use setup-homebrew GitHub Action.

cask/cmd/upgrade: output cask upgrades on new line

This allows more code reuse.

audit: add --tap argument.